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TI-2021-03039 Aliases CVE-2021-4171GHSA-xp7p-3gx7-j6wx

Business Logic Errors in janeczku/calibre-web

Priority MEDIUM 45CWE-840Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.

Summary

calibre-web is vulnerable to Business Logic Errors

Why it matters now

EPSS 0.01387 72nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed janeczku/calibre-web (janeczku): 0.6.15calibreweb (PyPI): 0.6.15

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
janeczkujaneczku/calibre-webbefore 0.6.150.6.15Patch availableCNA
—calibreweb (PyPI)before 0.6.150.6.15Patch availableGHSA-xp7p-3gx7-j6wx
  • janeczku/calibre-web Vendorjaneczku Affected before 0.6.15 Fixed in 0.6.15 Patch available CNA
  • calibreweb (PyPI) Vendor— Affected before 0.6.15 Fixed in 0.6.15 Patch available GHSA-xp7p-3gx7-j6wx

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:janeczku:calibre-web:*:*:*:*:*:*:*:*before 0.6.15Vulnerablejaneczku
  • cpe:2.3:a:janeczku:calibre-web:*:*:*:*:*:*:*:* Versions before 0.6.15 Vulnerable ·janeczku

Remediation

  • Fix · CNA janeczku/calibre-web (janeczku) Fixed in 0.6.15
  • Fix · GHSA-xp7p-3gx7-j6wx calibreweb (PyPI) Fixed in 0.6.15 Advisory →

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    janeczku/calibre-web 0.6.15

    2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2021-03034 Cross-Site Request Forgery (CSRF) in janeczku/calibre-webPriority LOW 39
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-4171
  2. 2026-10-03 Alias added: GHSA-xp7p-3gx7-j6wx

References

Exploit 1

Patch 1

Advisory 1

Other 3

  • TI-2023-01981 Weak Password Requirements in janeczku/calibre-web CVSS 3.1CRITICAL 9.8
  • TI-2022-02333 Improper Restriction of Excessive Authentication Attempts in janeczku/calibre-web CVSS 3.1CRITICAL 9.8
  • TI-2021-07971 Calibre-web - Admin Account Takeover via Cross-Site Request Forgery (CSRF) CVSS 3.1HIGH 8.8
  • TI-2025-06745 Calibre Web 0.6.24 & Autocaliweb 0.7.0 - Blind C CVSS 4.0MEDIUM 5.9
  • TI-2021-02885 Cross-site Scripting (XSS) in janeczku/calibre-web CVSS 3.1MEDIUM 6.1
  • TI-2024-26178 In janeczku Calibre-Web 0.6.0 to 0.6.21, the edit_book_comments function is vulnerable to… CVSS 3.1MEDIUM 5.4
See all 23 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences